20885917360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3390571}}^1$

素因数の和:3390602

約数の個数: 80

約数和(自身を含む): 60542053632

約数和(自身を除く): 39656136272

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 3390571, 6781142, 13562284, 16952855, 23733997, 27124568, 33905710, 37296281, 47467994, 54249136, 67811420, 74592562, 94935988, 118669985, 135622840, 149185124, 186481405, 189871976, 237339970, 261073967, 271245680, 298370248, 372962810, 379743952, 474679940, 522147934, 596740496, 745925620, 949359880, 1044295868, 1305369835, 1491851240, 1898719760, 2088591736, 2610739670, 2983702480, 4177183472, 5221479340, 10442958680, 20885917360]

約数ペア:

[(1, 20885917360), (2, 10442958680), (4, 5221479340), (5, 4177183472), (7, 2983702480), (8, 2610739670), (10, 2088591736), (11, 1898719760), (14, 1491851240), (16, 1305369835), (20, 1044295868), (22, 949359880), (28, 745925620), (35, 596740496), (40, 522147934), (44, 474679940), (55, 379743952), (56, 372962810), (70, 298370248), (77, 271245680), (80, 261073967), (88, 237339970), (110, 189871976), (112, 186481405), (140, 149185124), (154, 135622840), (176, 118669985), (220, 94935988), (280, 74592562), (308, 67811420), (385, 54249136), (440, 47467994), (560, 37296281), (616, 33905710), (770, 27124568), (880, 23733997), (1232, 16952855), (1540, 13562284), (3080, 6781142), (6160, 3390571)]